Document wKyg5MQ4MRpNKvVka3pxxM9Jo

Heating Ventilating Air Conditioning Guide 1939 Table 6 Coefficients of Transmission (U) of Frame Interior Walls and Partitions^ extents narrc* sctrxes^scedsisn^Bmtu P^eur h^ou^rppe^r sbqausaedreifnooXt MPeradireg(rneoe wFainhdr)enchoenidt idtiioffnesreonncebointhtesmuiptse.rature between the air on l TYPICAL CONSTRUCTION DOUBLE PARTITION (Finished on Both Sides or Studding) SlFGLB Pabtition Wall No. (Finish on One Mr 8n>B or Space Studding) Between Studding Flaked Gpwum Between Studding Rock Wool Fill* Between Studding Flexible Insulation Between Studding (One Air Stud Space Faced !)ne Side with Bright Aluminum Foil Space) Type of Wall aBC D E Wood Lath and Plaster On Studding 77 0.62 0.34 0.11 0.076 0.21 Metal Lath and Plaster* On Studding 78 0.69 0.39 0.11 0.078- 0.23 Plaster Board (% in.) and Plaster4 On Studding 79 0.61 0.34 0.10 0.075 0.21 K in. Rigid Insulation and Plaster4 On Studding 80 0.35 0.18 0.083 0.063 0.14 1 in. Rigid Insulation and Plaster4 On Studding 81 0.23 0.12 0.066 0.054 0.097 IK in. Corkboard and Plaster4 On Studding 82 0.16 0.081 0.052 0.044 0.070 2 In. Corkboard and Plaster4 On Studding 83 0.12 0.063 0.045 0.038 0.057 F 0.24 0.26 0.24 0.15 0.10 0.073 0.059 Computed from factors marked by * in Table 2. *Thickness assumed Z% in. Plaster on metal lath assumed &-in. thick. ^Plaster assumed H-in. thick. Table 7. Coefficients of Transmission ((/) of Masonry Partitions Coefficients are expressed in Btu per hour between the air on the two stdes, and Per square are based foot per degree Fahrenheit difference in temperature on still air {noxeind) conditions on both stdes. T a b l e 8. C o e f f ic ie n t s o f r a n s m is s io n (CO o f F r a m e C o n s t r u c t io n F lo o r s a n d C e il in g s *T Coefficients are expressed in B tu per hour per square foot per degree Fahrenheit difference in temperature between the a ir on the two sides, and ore based on s till a ir (no wind) conditions on both sides. TYPICAL CONSTRUCTION Chapter 5. Heat Transmission Coefficients and Tables 0.34 0.25 0.24 0.23 0.18 0.14 . 0.19 0.12 0.081 0.094 K-io. Battleship Linoleum on Yellow Pine Flooring1 no 990'0 0.25 0.24 0.24 0.18 0.14 0.12 0.066 j o - 11 0.094 0.27 0.21 0.20 0.13 0.17 o .n 0.076 i 0.063 | 0.087 a | |SJ|'a UiSs a $ o O Z %b>-3 Yellow Pine Flooring on Rigid Insulation (H in.) on Joists o s 0, u o<N C* O o a a* >E- a ao Co S3 9*-* 0.30 <T0f c<No 0<N0 <N d ooo o .ia 0.22 0.13 0.086 61*0 j 910 1 890 0 oO O O i1 1 I | | ' 69 0 I 0.69 S' og E o < i CD o Z 0.61 0.35 No od 1 | | - to w IA NO ts 00 O' j 0.12r 010 0.12 0.23 * 17 0.16 10 1 12 ]1 j |1 | ] j | J | None j' B rig h tA lu m ln u m F o lt* j F le x ib le 4 In s u la tio n (1 in.) | F le x ib le 4 In s u la tio n (2 in.) j R ock W ool F ill (3% In.) None INSULATION BETWEEN JOISTS No. None R ig id In s u la tio n (K in.) and P laster (K in.) j None P la s te r B o a rd in .) a n d P la s te r (> in.) j N o n e | None None None | ] M e ta l L a th and Plaster {% in.) Wood L a th and Plaster ofc 3 u Vto O w ce c *3 O o Z 109 e i u I ft, O AG J2 GO 3CD 6 O a 5 M e ta l L a th and Plaster - M e ta l L a th and Plaster M e ta l L a th and Plaster M e ta l L a th and Plaster c- s c- u$ w4) O u 4) CD CB o 5 c a a G Q c 5 .5 w ua uo a 0 A Xi J* u 33 Computed from factors marked by * in Table 2. Thickness assumed to be % in.` Thickness assumed to be % in. 4Based on one a ir space w ith no flooring, and tw o a ir spaces w ith flooring. .The value of U w ill be the same if insulation is applied to under side o f joists and separated from la th and piaster ceiling by l>in. furring strips, A ir space faced on one side w ith b rig h t alum inum foil.